ASP.NET Ajax ServerControls

ASP.NET Ajax server controls encompass a combination of server-side and client-side code that collaborate to deliver enhanced client behavior. The following list highlights some of the commonly utilized Ajax server controls:

  1. ScriptManager Control
  2. UpdatePanel Control
  3. UpdateProgress Control
  4. Timer Control
  5. ScriptManagerProxy Control

ScriptManager Control

The ScriptManager control acts as a central component in ASP.NET Ajax applications. It manages the inclusion and rendering of client script files, enabling seamless integration of Ajax functionality within the web application.

UpdatePanel Control

The UpdatePanel control offers a powerful mechanism for achieving partial-page updates. By encapsulating specific content within the UpdatePanel, developers can refresh only the designated portions of the web page without performing a full postback. This results in a smoother user experience and reduced network traffic.

UpdateProgress Control

The UpdateProgress control allows for the display of visual feedback or status information during partial-page updates. By using the UpdateProgress control in conjunction with the UpdatePanel, developers can inform users of ongoing operations or provide progress indicators, enhancing the overall user experience.

Timer Control

The Timer control facilitates periodic postbacks, enabling developers to trigger server-side events at specified intervals. This control is particularly useful for scenarios where dynamic updates or real-time data refresh is required, ensuring that the web page remains up-to-date without the need for manual user interaction.

ScriptManagerProxy Control

The ScriptManagerProxy control serves as a supplementary component to the ScriptManager control. It allows for the nesting of multiple ScriptManager controls on a single page, making it possible to integrate different Ajax functionality or behavior within separate sections of the web application.

These Ajax server controls provide developers with powerful tools to enhance the interactivity and responsiveness of web applications. By utilizing these controls, developers can create dynamic and engaging user experiences that offer seamless partial-page updates, visual feedback, timed events, and flexible integration of Ajax functionality.


ASP.NET Ajax server controls combine server-side and client-side code to enable the creation of rich client behavior. The ScriptManager, UpdatePanel, UpdateProgress, Timer, and ScriptManagerProxy controls are among the frequently used controls that empower developers to deliver interactive and dynamic web applications.